1939834894 has 8 divisors (see below), whose sum is σ = 2924829360. Its totient is φ = 964891776.

The previous prime is 1939834891. The next prime is 1939834903. The reversal of 1939834894 is 4984389391.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1939834891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2512354 + ... + 2513125.

It is an arithmetic number, because the mean of its divisors is an integer number (365603670).

Almost surely, 2^1939834894 is an apocalyptic number.

1939834894 is a deficient number, since it is larger than the sum of its proper divisors (984994466).

1939834894 is a wasteful number, since it uses less digits than its factorization.

1939834894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5025674.

The product of its digits is 6718464, while the sum is 58.

The square root of 1939834894 is about 44043.5567818949. The cubic root of 1939834894 is about 1247.1583221757.

The spelling of 1939834894 in words is "one billion, nine hundred thirty-nine million, eight hundred thirty-four thousand, eight hundred ninety-four".